From: Miaohe Lin linmiaohe@huawei.com
[ Upstream commit a4d956b9390418623ae5d07933e2679c68b6f83c ]
In case writing to vmread destination operand result in a #PF, vmread should not call nested_vmx_succeed() to set rflags to specify success. Similar to as done in VMPTRST (See handle_vmptrst()).
Reviewed-by: Liran Alon liran.alon@oracle.com Signed-off-by: Miaohe Lin linmiaohe@huawei.com Cc: stable@vger.kernel.org Reviewed-by: Sean Christopherson sean.j.christopherson@intel.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/kvm/vmx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index fa2abed1a14da..2660c01eadaeb 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8793,8 +8793,10 @@ static int handle_vmread(struct kvm_vcpu *vcpu) /* _system ok, nested_vmx_check_permission has verified cpl=0 */ if (kvm_write_guest_virt_system(vcpu, gva, &field_value, (is_long_mode(vcpu) ? 8 : 4), - &e)) + &e)) { kvm_inject_page_fault(vcpu, &e); + return 1; + } }
nested_vmx_succeed(vcpu);